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Finding the Fourth Proportional to 216,032.45, 323,775.30 and 82,734.80

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Solution

The fourth proportional to 216,032.45, 323,775.30 and 82,734.80 is: 123,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,032.45 : 323,775.30 = 82,734.80 : x
  2. Step 2: Convert to fraction form
    216,032.45/323,775.30 = 82,734.80/x
  3. Step 3: Cross multiply
    216,032.45x = 323,775.30 × 82,734.80
  4. Step 4: Simplify right side
    216,032.45x = 26,787,484,690.44
  5. Step 5: Solve for x
    x = 26,787,484,690.44/216,032.45
  6. Step 6: Final answer
    x = 123,997.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.